Sunday, December 7, 2014

Orion - NASA spacecraft to take Humans to Mars achieves success on maiden test flight

Orion, the spacecraft aimed to carry the first humans to Mars one day, ventured beyond the skies on its maiden flight on December 05, 2014. It was an experimental test flight launched from Cape Canaveral Air Force Station, Florida, America’s most used space launch port.

The flight has been termed near perfect as per National Aeronautics & Space Administration’s (NASA) mission control center once Orion successfully splashed down into the Pacific Ocean near California after orbiting the earth twice.


Orion taking off from Cape Canaveral on Dec 05 on board the Delta IV Heavy launch Vehicle; Courtesy - Space.com, NASA


This flight only included the crew module which is meant for housing the astronauts during deep space voyages to asteroids and Mars. The fully functional Orion will contain the crew module developed by Lockheed Martin, the service module developed by Airbus and a Launch Abort System (LAS) which will allow astronauts to detach the crew module from Orion assembly and abort mission in case of a launch failure.

The Orion made its reentry into earth’s atmosphere at a speed of 20,000 miles per hour (36,000 km per hour) and had a mass of 21,000 pounds (9530 kg). It slowed down to a speed of 300 miles per hour when the system of 11 parachutes took over to bring it safely down to 20 miles per hour and drop it in the Pacific. This first flight was called Exploration Flight Test-1 and cost $370 million



While it was not a red letter day in NASA’s history, the event has created some euphoria among the public for the world’s largest and most advanced space agency which has been plagued by budget constraints in last 10 years.

Initially, Orion was a part of the Constellation Program, started by President George W Bush in 2004 to take Americans back to the moon by 2020 and eventually to Mars.

But Constellation was cancelled by current President Barack Obama in 2010 on the recommendation of an expert committee that the program was not financially feasible under then NASA budgets in the near future since then global recession and the wars in Iraq and Afghanistan had put huge pressure on US government annual budgets.

Since the golden age of space exploration in the 1960s and early 70s when US & Soviet Union locked horns in a fierce space race. Soviet Union took the first humans into space while NASA took the first humans to moon on a series of Apollo spacecraft missions. But since then, it has been a downhill slide for NASA.

The last person walked on the moon in 1972 as the Apollo program was terminated post that both due to budget constraints and the cancellation of Soviet Union’s fledgling moon program.

Apollo 17 Scientific Instrument Module bay on the Service Module, seen from the Lunar Module in orbit around the Moon; Courtesy - NASA

Eugene Cernan, the last human to walk on the moon performing the last lunar excursion, December 13, 1972; Courtesy - NASA
Apollo was replaced by the Space Shuttle, a semi reusable space launch vehicle (aka rocket) that took humans back only in the low earth orbit (LEO altitude range is 160km to 2000 km above earth’s surface). The first operational flight mission of the space shuttle was in 1982 and it was retired in 2011 after 135 missions.

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The shuttle, partly similar to a plane, used to lift vertically on attached combinations of solid and liquid booster rockets and upon reentry and descent into earth’s atmosphere, used to glide down and land horizontally on a special runway partly reminiscent of landing a small plane.

The STS-133 mission, Space Shuttle Discovery touches down similar to a small plane at the Shuttle Landing Facility; Courtesy - NASA/Kim Shiflett 
The Obama administration initiated and US Congress passed legislation in 2010 mandating NASA to create a new deep space launch vehicle called Space Launch System (SLS) that can carry Americans in Orion beyond LEO and eventually to Mars. The future travel to and from LEO was targeted through the commercial crew and cargo development programs (the economics and financial aspects of US space program and the private sector aiming at Mars will be dealt with in a future Blog post)

Orion aimed at carrying 3 humans to moon under the Constellation program. Then, the new NASA Act passed by US Congress in 2010 salvaged Orion and made some modifications to enable it to carry 4 humans not just to the ISS but up to Mars using the under development SLS rocket.

Artist's rendering of Space Launch System (SLS) After Launch-20140827; Courtesy - NASA/MSFC & licensed under Public domain via Wikimedia Commons 
Thus, the December 05 Orion’s maiden flight was launched on the Delta IV Heavy rocket belonging to the Delta family of expendable (use once & throw) launch rockets developed by United Launch Alliance, a joint venture between Boeing and Lockheed Martin. The Delta family has been mostly used to launch US military and navigation satellites.

Only rockets carrying telescopes, satellites and landers & robotic probes to moon, Mars and other destinations in the solar system have ever crossed LEO. And this is where Orion’s flight is deemed historic.

Orion reached an altitude of 3630 miles (5790 km), over 15 times higher than any human spacecraft has reached since the last Apollo (Apollo 17) landing in 1972. The space shuttle only ever reached a maximum of 350 km in its 135 mission history. However, Orion’s flight was not aimed at breaking a four decade plus hiatus for a human spacecraft to go beyond LEO.

The primary objective of this flight was to test Orion’s heat shield upon the craft’s reentry into the earth’s atmosphere where it is engulfed by a ball of plasma attemperatures in excess of 4000 degree Fahrenheit. The space shuttle experienced temperatures up to 1500 degree Fahrenheit (º F) only.

NASA originally targeted a heat shield made of a newly developed composite material but after a lot of R&D, concluded that Avcoat, the same coating which protected the Apollo spacecrafts upon reentry over 4 decades ago,  is still the best.

Some minor changes were made in the new shield like 30 percent extra material to fit onto the larger sized Orion. The coating had not been in manufacturing for decades and it took NASA 8 months to redevelop it.

The shield consists of a fiberglass overlay with 320,000 cells which are filled with Avcoat. This fiberglass overlay is built around a titanium skeleton upon which a carbon fiber skin is fitted. The stand out property of the heat shield is that a significant percentage (20 percent in this test flight) of the Avcoat coating burns away in the extreme heat generated by the plasma ball surrounding the spacecraft during descent through the atmosphere.



But flights to moon and Mars will be an entirely different ballgame. An Orion capsule returning from the moon will hit the Earth’s atmosphere at about 25,000 miles per hour raising temperatures upto 5,000 º F.

If returning from Mars, it’ll make reentry at a mind boggling 33,500 miles per hour, highest speed ever for a man-made object re-entering earth’s atmosphere. The temperature of the plasma ball will be a scorching 5,500 º F.

While there’s no way to test a return from Mars reentry conditions, the test flight in 2018 is planned around the moon and will be launched on SLS. Then comes a series of LEO missions on SLS-Orion followed by the major proposed asteroid mission to be carried out by 2025.

In this, SLS is supposed to lasso an asteroid via a robotic spacecraft and put it in orbit around moon and then the first humans aim to land on the asteroid to conduct experiments and collect samples. The asteroid mission is aimed to be the final test bed for humanity’s odyssey to Mars.

The second major objective of Orion’s flight was to test the system of 11 parachutes which were deployed like a choreographed ballet sequence beginning at an altitude of 20,000 feet (around 3.8 miles or 6.1 km) when the capsule had slowed down to a speed of 300 miles per hour.


Orion Crew Module descending through the last 3.8 miles (6.1 km) after the system of parachutes were deployed in a unique sequence; Courtesy - NASA
Apart from the above major objectives, Orion crew capsule had 1200 sensors fitted on it to record flight data on critical variables like temperature, pressure, speed and radiation. The next few years will involve data analysis of values of all the variables recorded by the sensors to prepare detailed knowledge about flight conditions and make necessary changes for next test flight scheduled for 2018.
  
As Orion lay peacefully in the waters of the Pacific Ocean waiting to be captured, the officials at NASA know that this is just the beginning of next phase of a decades’ long journey. A recent Congressional committee came out with a reportstating that NASA’s SLS launch vehicle and Orion crew capsule program iswoefully underfunded and major technological challenges remain before it can ever take off to Mars – some call it a nonstarter.

On the technological front, cosmic and solar radiation remains the biggest obstacle. The amount of radiation that astronauts’ bodies are estimated to absorb on a trip to Mars with the same shielding that was used on the Apollo moon missions will prove to be lethal. Thus a radiation shielding of an entirely new structure and size is required.

One of the most oft discussed radiation shielding solutions is water. But Orion will need a water shield atleast 1 meter thick for the least time consuming trajectory to and from Mars. That largely reduces the amount of payload that can be carried to Mars which would include astronauts’ belongings, food and all landing and habitat equipment to live on Mars. Most research into other radiation shielding materials has not reached beyond lab testing.

Then there is the issue of the astronauts spending the longest ever time in micro gravity conditions experienced by any human. Micro gravity makes the muscles and bones to atrophy and there’s no experiment conducted or data available as yet that can simulate the micro gravity conditions for both the onward and return journeys.

Thus this is one small step for humanity especially NASA and it’ll take hundreds of such steps before we make the next giant leap to Mars.


Monday, April 28, 2014

ISRO's bold steps to put India in Top 5 on earth with own GPS Satellite System

Indian Space Research Organisation (ISRO) took another step towards becoming a global force to reckon with in the space sector with the successful launch of its second navigation satellites, the IRNSS 1B, in orbit around earth on Friday, April 04. The satellite was launched from the Satish Dhawan Space Centre at Sriharikota (SDSC SHAR) using India’s workhorse launch vehicle, the Polar Satellite Launch Vehicle (PSLV). The satellite is part of the Indian Regional Navigation Satellite System (IRNSS) programme, which involves launching of seven navigation satellites by mid 2015.

IRNSS 1-B satellite in the clean room at ISRO's Satish Dhawan Space Centre, Sri Harikota;
Image Courtesy: ISRO

Navigation satellites, known to the general public as GPS satellites, after the official name of the system of twenty four US navigation satellites, provide positioning and tracking services for users in a plethora of fields. The IRNSS 1B was initially placed in an intermediate orbit by the PSLV version code named PSLV C-24 from where, 5 orbit raising maneuvers will be performed over next few days to place it in the intended geosynchronous circular orbit (a geosynchronous orbit is one in which a satellite takes 24 hours to revolve around the earth) at a height of 36,000 km.

An ISRO press release stated “After a flight of about 19 minutes, IRNSS-1B Satellite, weighing 1432 kg, was injected to an elliptical orbit of 283 km X 20,630 km, which is very close to the intended orbit. After injection, the solar panels of IRNSS-1B were deployed automatically. ISRO's Master Control Facility (at Hassan, Karnataka) assumed the control of the satellite.”

PSLV C24 rocket takes off from spaceport at Sri Harikota with the IRNSS-1B navigation satellite; Image Courtesy: ISRO

The IRNSS system will be a critical national asset delivering terrestrial, marine and aerial navigation services including disaster management, mapping services, vehicle tracking and visual voice navigation apart from future strategic applications like in guided missile defense systems and other military purposes. 

India already became the fifth nation after the GPS system of US, Russian GLONASS, China’s Beidou and EU’s Galileo to launch an indigenously developed navigation satellite as part of a navigation system when it launched the first in the series, the IRNSS 1A, in July 2013. IRNSS’s primary service area will stretch upto 1500 km beyond the nation’s borders. The design and technology involved has scope for enhancing the coverage area by adding four satellites beyond the seven but ISRO has stated that this would be considered only if future need arises. 

IRNSS-1A, India's first 'GPS' satellite, integrated with PSLV C22 rocket at Satish Dhawan Space Centre, Sri Harikota before launch in July 2013; Image Courtesy: ISRO

The genesis of IRNSS programme occurred ten years ago with the aim of creating a system entirely in control of the Indian government to provide accurate real time positioning, navigation and timing (PNT) services for both civilian and military purposes. It was approved by the Indian government in June 2006 and the project has an estimated cost of Rs.1420 crore with each satellite costing around Rs.125 crore and the ground based infrastructure valued at Rs.300 crore.

A navigation satellite emits microwave signals periodically which contain the exact time when a signal leaves the satellite. Any receiver on the ground, like in a mobile phone, picks up the signal and then based on the time difference between the transmission and reception of the signal, measures the distance of the satellite from the receiver. Thus, as in case of GPS, a receiver gets signals from four satellites and is thereby able to calculate its own precise location.

Thus one critical element in satellite navigation is time measurement upto the smallest possible fraction of a second. Each IRNSS satellite contains 3 rubidium atomic clocks, which keep time upto a few tenths of a trillionth of a second in an hour. Currently, ISRO is importing these clocks but work is on to develop these clocks within the country. Since the accuracy of these clocks gets affected by vibrations, electrical interference and if their temperature goes 1 degree Celsius either way beyond their optimum operating temperature, ISRO designed the satellites accordingly from scratch.

With regards to ground based control and management, the ISRO release added “A number of ground stations responsible for the generation and transmission of navigation parameters, satellite control, satellite ranging and monitoring, etc., have been established in as many as 15 locations across the country”.

The IRNSS is estimated to provide position accuracy within 10 metres on the Indian landmass and position accuracy within 20 metres in the ocean and area within 1500 km of the borders. The position accuracy of US GPS receivers is about 15 metres for civilian purposes. However, civilian use of IRNSS will require separate receivers which the standard GPS receivers cannot meet. ISRO ‘s Space Applications Centre at Ahmedabad is already in advanced stages of development for appropriate IRNSS receivers.
 
The third and fourth satellites are slated to be launched by the end of this year while the remaining three are targeted for launch in March 2015. The IRNSS 1B launch was the twenty fifth consecutive successful launch of PSLV. The PSLV configuration that was used for this mission is the ‘XL’ version which had been used in the past to launch 5 missions, including India’s maiden moon (Chandrayaan 1) and Mars (Mangalyaan) missions.

Wednesday, December 4, 2013

Mars Orbiter Mission - One of many seeds that'll grow to serve Humankind

Posterity, perhaps, will judge the first 2 decades of the 21st century for either one of 2 reasons. It will either reaffirm the unwritten unsaid faith of a vast majority of realists and almost every pessimist that this is yet another decade when the disparities between the haves and have-nots will widen further and the Earth, for most of its inhabitants, would become an even tougher place to survive. Courtesy an ever increasing income chasm between the rich and the poor especially in the developing world coupled with an ever increasing mercury of the planet, these 20 years might just prove to the pivotal point for humanity towards an apocalyptic world we got glimpses of in the recent Matt Daemon flick Elysium.

However, the second reason might just come true if only the pivot, or in fact the pivots, are placed at the right location and the right time. And one such pivot might be how the 2 most populous nations on Earth are sowing the first seeds of the largest industry in the future of human civilization. For, China & India’s recent small steps to take their own giant leaps into capturing the final frontier might just prove to be the critical links towards humankind’s march to becoming a multi-planetary species (and perhaps interstellar species?)

Video Link: Mars Orbiter Mission Launch; Courtesy: Euronews & DD News

While India’s Mars Orbiter Mission (MOM) raged first ever truly public debates in independent India’s history over a science and technology project, China, in its own diplomatically pompous manner, launched its first ever moon rover mission, the Chang’e 3 on December 2, 2013. Since expression of dissent against any state policy/project is a mild synonym for treason in China, there was an almost unanimous applause within the People’s Republic for crossing another cosmic milestone and, as has been the norm in the last decade, the applause was echoed around the world. But India’s MOM, while largely receiving positive views among the scientific community across the globe, has been lambasted in many significant media outlets and by prominent intellectuals from various fields both within and outside the country. But the real Pandora’s Box here is the myopic viewpoint.
Video Link: China's Chang'e 3 Lunar Lander Launch on Long March 3B Rocket; Courtesy: CCTV America

Before questioning the motive, relevance or usefulness of such a mission for a nation consisting of the world’s largest number of poor, we must first define the context under which such questions are raised. And this is where many, both for and against India’s MOM, miss the point. First of all, the context here is that the current level of scientific and technological knowledge coupled with economic potential has enabled both India and China to take bigger and bolder steps in space exploration and space science since the turn of the century. Secondly, there is a massive and indisputable body of evidence in favor of offshoots and derivations from space technology having found applications in day to day life for masses across the globe (refer to my blog post last year dated July 06, 2012 - “The Indian LSD Deficiency Syndrome").

Products from everyday cellphone communication and water filters to services like TV broadcasting, weather monitoring and remote sensing are all possible due to direct application or indirect spin offs of technologies developed for space missions. But, then, a very relevant and obvious question is – Why are we not focused on only launching better and diverse satellites which directly aim at improving the lives of the poor in India instead of wasting Rs.460 crore (US$73 million in terms of average dollar to rupee exchange rate in last 6 months) gazing at Martian red dust?

That’s where most miss the critical pieces in this jigsaw puzzle. Those pieces are categorically 2 in number. First one is the mastering of certain critical technologies that will go a long way in launching heavier payloads, both diverse satellites as well as future complex scientific payloads. ISRO’s launch vehicle which carried Mangalyaan, the Polar Satellite Launch Vehicle (PSLV), positions payloads upto 1900kg either in the Sun Synchronous Orbit (SSO) or the Low Earth Orbit (LEO) (these orbits are used by earth observation and weather satellites) raised the bar many notches with MOM.

PSLV has, for the first time, mastered a much longer 4 stage ignition lasting 43 minutes than the usual nearly 18 minutes to put a remote sensing satellite in orbit (roughly put, every launch vehicle has multiple stages in terms of fuel containing boosters in each stage which are fired at the right time, right position and right orientation of a spacecraft to place it in the right orbit or to raise the orbit) to place Mangalyaan in the appropriate orbit around Earth from where the spacecraft's own engine took over.

From there, Mangalyaan’s own propulsion system, were fired in 6 maneuvers to provide it the requisite velocity to leave Earth’s Sphere of Influence (SOI) (sphere of influence is roughly a huge sphere around earth in which Earth’s gravity is more than that of the sun. There are similar SOIs for every planet and moons) and follow a trajectory towards Mars. This process of igniting the 440 Newton engine of the spacecraft to make it leave Earth orbit and slowly move out of Earth’s SOI is called TransMars Injection (TMI) and India is only the 5th nation apart from US, Russia, EU and Japan to have achieved that.


The second and perhaps the standout technological achievement for ISRO will be the 3 levels of autonomy provided to Mangalyaan once they work effectively throughout the duration of the mission. When Mangalyaan is at Mars, any signal will take a little above 20 minutes to travel from Earth to Mangalyaan and vice-versa. Thus there’s a 42 minute delay in a command from earth to reach back Mangalyaan after Mangalyaan sends any signal about any glitch or change required in maneuvering the craft when it is near Mars or in Mars orbit. Thus the 3 level autonomy has ensured that all necessary mission tasks at various stages be completed by Mangalyaan itself once it is at substantially huge distances from Earth without needing commands from Earth especially when the craft is close to Mars or in Mars orbit.
   
Now, achieving the above technological capabilities in carrying out complex navigation in deep space, orbital raising/lowering maneuvers and system autonomy achieved by PSLV during MOM will be critical assets for India to be a major player in the emerging global space industry which is the 2nd piece in the jigsaw puzzle justifying the credibility of MOM and similar deep space missions for India. And herein lies the real motive behind this mission. In 2012, the global space economy size was $304 billion, a growth of 5% while the global satellite industry grew 7% clocking $190 billion in sales. Satellite launch industry revenues, which reflect revenues through launches made in an year, grew 35% year-on-year (yoy) from 2011 to 2012 with US revenues alone reaching $2.2 billion from $1.4 billion. Within the space industry, satellite manufacturing revenues, again portraying in-year satellites launched, rose 23% to $14.6 billion.

Since ISRO, has already made over 100 launches since its inception around 50 years ago, this is like missing out on the Great California Gold Rush despite being very close to the gold mines. ISRO has over 400 registered companies providing components and small parts to be used in various space based and ground level systems used in various missions and ground settlements of the agency. However, successive governments are still stuck in the socialist era mindset of restraining to unleash the commercial potential lying idle under the ‘pious’ aim of working for nation building and providing better life standards to the common people. As usual, our policymakers forget that huge productive assets have been created which can add massive value both in terms of India's own communication, earth observation and weather monitoring satellites and also providing massive services to other countries in areas like satellite launch/manufacturing and other space based services.

Until now, ISRO’s major workhorse, the Geo Synchronous Launch vehicle (GSLV) has developed its first variant, the GSLV Mk1 (a), (b) & (c) with Mk 1(a) & (b) having maximum load carrying capacities of 1500 kg and1900 kg respectively to Geosynchronous Orbit (this is the orbit in which communication satellites are placed). The first ever successful flight of GSLV took place in 2001 and it has had some success with 2 successful launches, one partial success and 2 failures. The second variant, GSLV Mk2, able to carry upto 2500 kg took 10 years to develop till 2010 for its first test flight but hasn’t had a successful commercial flight yet. The 3rd and latest variant GSLV Mk3, targeted to carry in excess of 4000-5000 kg is in development stages as of now. But, the GSLV Mk1 & Mk2 cannot place heavier communication satellites generally used across the globe. However that’s not the case with PSLV.

GSLV MkIII mock-up; Courtesy: ISRO

As per a Euroconsult report in 2009, a Paris based research & analyst firm, over 76% of all communication satellites (not other categories of satellites) to be launched in the period 2012-2018 weigh over 3500 kg which means India still doesn’t possess the proven launch capability to cater to that market but can target the remaining 24% with its GSLV Mk 1 variants. But, as per Euroconsult, there would have been 951 satellites (earth, weather observation, navigation etc.) in the sub-1900kg category to be launched in the period 2009-2018 as per declared private and government programs. All these can be carried by PSLV which has already had 23 successful launches till date in the sub-1900 kg category.

To what extent have we lost because of our government & policymakers’ innate desire to rarely look beyond the 2-3 year election cycles (since major states’ elections happen almost every 2 years) can be gauged from the fact that average satellite costs for this decade (2010-2019) is estimated at $99 million with average launch price at $51 million. 5 years have passed in that 10 year time period. So, around half of that market might be already captured by now and remaining would soon be gone. 

I will dedicate an entirely separate blog post to the total commercial opportunity available in global space industry in future and how India and China fit into the picture and to what extent India has lost its way to the space goldmines despite being so close in last few years. But, as far as MOM is concerned, just like innumerable spinoff space technologies became ubiquitous in our daily lives, in what unfathomable ways will deep space navigation and system autonomy capabilities going to find applications in various fields where the masses will benefit remain undiscovered.

And that's where the issues of relevance and usefulness which I mentioned in the early part of this article gain ground. But until we take those small steps, we’ll never get to take the giant leap. But to wait to bask in the glory of an elusive utopian state where the state will first provide toilets, drinking water and power to every head in the soon to be most populous nation on earth and then to think about investing in new age science and technology is nothing but a self defeatist ideology.

We have had atomic energy, space technology, mobile phones, internet and biotechnology which have served the entire population in bettering their lives some way or the other but we still haven’t provided toilets, drinking water and power to 40% of population. Simply because there is no accountability in the system to ensure where the allotted money for every field is going and not because $73 million has been robbed off from a ‘forever poor’ Indian’s would be toilets and packed in bags to orbit around Mars.  

Wednesday, November 6, 2013

Uttarakhand & Himalayan Destruction - Environmental Science has the Answers

(2nd article in my series on Himalayan & Uttarakhand's environmental destruction after my previous post on August 04, 2013) 

Environmental Costs Equal Lives of Poor

The recent disaster in Uttarakhand where more than 6000 people lost their lives has been portrayed as a ‘natural disaster’ by the state and central governments and by some sections of media but, in reality, its nature’s first major counter strike against our country’s incessant mindless destruction of the most diverse yet one of the most fragile ecosystems on the planet in the name of development.

In the wake of the current disaster, it is critical not just for real sustainable development of the mountain states of India but more so for the very survival of the people living in the Himalayas to avoid any plausible similar disaster from happening in the future but also highlight and continuously reduce the long term environmental costs that are, both literally and metaphorically, never borne by the perpetrators who enjoy the so called ‘fruits’ of development in the Himalayas.

One simple example out of many which proves my point – In Lodhama region of Darjeeling district of West Bengal, the state government partnered with some MNC to develop a Mini-Hydel power project under the Clean Development Mechanism (CDM). CDM is an emissions trading scheme under Kyoto Protocol in which, if a project is emitting less pollutants than a baseline value (as calculated from emissions of other similar projects), then the emissions that were not emitted are given as credits to that company which has invested in the project. These credits can then be traded in the carbon trading markets.

So, while this Darjeeling based project made money for its owner company through power generated, they also earned carbon credits for some other MNC which has the go ahead for continuing to pollute (as has been the case with numerous CDM projects which on the ground never make actual emission reductions), the locals who have the first right on the natural wealth have got no share of the electricity generated from the project. At the same time, water diverted from the stream has crippled crops grown nearby and biodiversity of the stream (ruining small fishermen). Imagine the impact on the locals with the poorest earning just Rs.8/day.


The Neglected Science

(most of the environmental science issues explained in this section is the summary of an enlightening discussion I had with India's preeminent geologist Prof. K.S. Valdiya some time back)

The landmass of the present day Indian subcontinent is pushing against mainland Asian landmass consisting especially of the Tibetan Plateau at a rate of 5cm/year. Thus, the Himalayas, on average, are rising by 5mm/year. Active fault lines as deep as 20 miles at places exist wherein rock layers push with intense force against each other. Thus, unregulated blasting and tunneling activity through the rocks for diverting river courses is severely disturbing the surface layers of soil consisting of trees and other vegetation which are unstable and have settled on the slopes only in last some decades. Thus, the first major rainfall is a perfect recipe for landslides. That is exactly what happened during the once in a generation cloudburst that occurred during 15-17 June 2013. And, the mushrooming of dam projects including operating, under construction and proposed ones in Indian Himalaya is the most lethal combination. 

Because of the active geological fault lines, explosive activity has been a catalyst for increased seismic activity resulting in greater probability of earthquakes. Already there are numerous examples (sometimes hidden by the local administration) wherein, walls of houses and hotels have collapsed and cracks have occurred in many more structures in villages and towns nearest to the blasting and mining sites even due to minor tremors. We must remember that Uttarakhand and much of Himachal Pradesh lie in either Seismic Zone 4 or the worst, Seismic Zone 5 meaning highest probability of large earthquakes.

Millions of tonnes of rubble generated due to massive excavation both for tunneling and road construction is indiscriminately dumped in the river beds (since developers save on costs of removing and transporting the millions of tonnes of rubble to safe dumping grounds, mother nature bears the costs). Thus, the volume of the river bed is severely reduced on the side of the dumping. Hence, during rainy season, the river charts out a new course with huge force and starts cutting the opposite slope from the base moving upwards thereby triggering land slide tendencies on both the slopes. Now, since rampant unregulated construction (homes, hotels and restaurants) happened all along the river banks totally neglecting dangerous flood marks, thousands of such constructions were washed away during the June floods.

Many agricultural and local flora based livelihood lands were lost due to flood waters crossing all previous highest flood levels during the Uttarakhand tragedy. Similarly, the rubble and the diversion of rivers due to tunnels have massively reduced the irrigation capacity of many downstream agricultural areas that were fed for millennia by the rivers’ natural flow. This has nearly destroyed local fisheries and aquatic life based industries apart from affecting the freshwater resources of communities at various altitudes all along the river basin.

Dam and real estate construction was and is being done on slopes where the top soil layers are already loose due to deforestation and thus, are easy to excavate making construction less expensive as against tougher and socially isolated rocky terrains. Thereby, explosive activity and digging coupled with deforestation all act as perfect catalysts for landslides. Secondly, another long term damaging effect of deforestation and tunneling is that the rainwater seeps in through the barren slopes and eroded soil in these tunnels. Consequently, natural water resources like numerous springs which have served the local village population for centuries have dried up in the last 15-20 years coinciding with massive dam construction and deforestation. Villages in many Himalayan districts have been facing a severe water crisis in the last 15 years or so.

The perpetration of this slow destruction isn’t restricted to land and water. Dams are a major source of Methane gas which is a bigger heat trapping greenhouse gas than carbon dioxide. A recent study by an international research institution categorically stated that India’s current dam density is the highest source of global warming as compared to all other countries in the world. However, the biggest alarm bells have been rung by a very famous research study published early in 2013 which stated that India’s predicted dam density in terms of dams per kilometer of river length after the proposed dams are built will be 62 times the world average. This will submerge 170,000 hectare of forests and affect nearly 90% of Himalayan valleys and 27% of those dams will affect dense forests with unique biodiversity.


The Establishment’s Tawdry Muck

On the governance front, there has been a complete lack of a Cumulative Impact Assessment (CIA) of dam and hydroelectric projects and the existing system of Environmental Impact Assessment under the Environment Act is carried out by voluntarily appointed environment auditors which lack credibility and there is negligible or zero local community involvement anywhere both in terms of getting clean chit from the locals and providing them alternate means of livelihood and homes.

However, the road to stopping this rampant plundering of our greatest natural wealth seems ready to be broken even before it’s built. As per the Supreme Court directive issued in August this year, the Ministry of Environment & Forests (MoEF) was to form an expert committee to investigate and come out with a report on the cumulative impact of all existing as well as proposed hydel projects in Uttarakhand. The committee was formed last month and no guesses, it consists of numerous government officials and 2 senior members of the former Expert Appraisal Committee (see my previous blog post dated August 04, 2013) of the MoEF, the same ‘clique’ that cleared more than 250 hydel projects across Himalayas since April 2007 and did not stop a single one for any environmental flaw or disregard. And this committee which has been directed by MoEF to come out with its report within 3 months, to cover more than 30 projects and asses each one of them separately, this committee sure will do an ‘expert’ job with no conflict of interest!!


The Panacea & Potential for Green Growth

In the short to medium term, the first step that must be taken should be the consolidation of existing settlements governed through land-use planning rather than unplanned growth of new ones. Secondly, flow paths for river beds and flood plains must be clearly demarcated and regulation zones put in place to protect them. For example, the entire watershed of the Bhagirathi river for the 135km stretch between Gaumukh and Uttarkashi must be declared as an eco-sensitive zone as per the EPA, 1986. The draft River Regulation Zone (RRZ) notification, that controls hotels and townships constructed along the river, lying in some dusty drawer in the MoEF, must be immediately notified.

India suffers from 35% transmission and distribution losses which can be reduced to the global average of less than 20% if only a little political will can be applied and civil society needs to highlight this on every possible forum and platform. Secondly, there are numerous examples of villages and communities not just across the globe but in India as well where small and micro hydel projects provide electricity to the nearby villages and communities ensuring economic development and negligible environmental impact.

Then, the concepts of green development or ecopreneurship applied to the Himalayan states must be implemented. This includes mainly 2 areas - creating sustainable employment opportunities in the areas of watershed development, horticulture and floriculture based industries AND valuation of ecosystem services like the carbon absorption capacity and water retention capacity of forests which is a huge long term cost not accounted for when such forest areas are removed.  

Solar and wind power have massive potential not just in plains and coastal areas but also in the sunny sides and windy slopes of Himalayas which is a natural resource for us that has never even been studied or experimented with. Thus, there are scientific solutions available which can be applied both in the Himalayas as well as in the plains and other geographic areas to drastically reduce the impact of current destructive model and almost change it completely in the long term.

Sunday, August 4, 2013

Uttarakhand Disaster - Environment & Science reveal the Truth

Earlier view of Vishnupryag HEP (400MW), View from upstream February 20, 2012 Image Courtesy: http://matuganga.blogspot.in/2013/06/press-note-30-6-2013.html

136, 125, 94… no words can suffice the perennial urge I suffer from trying to squeeze out every moment of ignorant bliss from my jagged existence and more often than not, I look no beyond that 5 feet 5 inch of nature’s enigma enthralling us since the time I barely stood at 4 feet. And even now, as I wrote those numbers in the beginning, something inside me yearned to see them against the name of a certain SRT when he pads up once again (perhaps for the last time) in December later this year in the rainbow nation.

However, rainbows remind me of ‘how’ these numbers are not scores but rankings. India’s 2012 rankings in the UN Human Development Index, The Yale University’s Environmental Performance Index and Transparency International’s Corruption Perception Index. Without an iota of doubt, they are the naked reminder as to how we as a nation, had to bow to the fury of the rains that ravaged the Land of the Gods in June this year. With the casualty count over 6000 and many places wiped out of the political map of the country, squeezing out sympathy and politician bashing is an insult to injury while lightening our pockets a bit for the victims ensures that sooner or later, someone might be lightening theirs for us or our next to kith or kin. The simple question is - Why did it happen in the first place and what can we do to be 99% sure it never happens again?

Destroyed Vishnupryag HEP (400MW), View from the downstream 26 June, 2013 Image Courtesy: http://matuganga.blogspot.in/2013/06/press-note-30-6-2013.html

By ‘why did it happen’, I don’t mean the natural causes that culminated in the flash floods but the reasons behind the worst human life destruction in the state’s living memory. K S valdiya, one of the country’s most eminent geological scientists, categorically stated in a leading publication that ‘Flash Floods are entirely man made’. According to him, roads and bridges built in the last decade or so restrict the natural flow of rivers and streams as against old railway bridges. Erecting piers restrict the channel and the embankments on both sides act as dams while the bridges act as open sluice gates.

Naveen Chaudhari of Chandigarh Centre of Advanced Study in Geology explained in the same publication that the Himalayas are among the youngest mountain ranges in the world are still growing. Northern Uttarakhand lies in the Central Crystalline Axis, a geological fault line on the planet consisting of fractured, fissured and sheared metamorphic rock formations where the lower lying harder rock layers are still pushing the upper rock formations against each other as a process of the growth of the mountains. Thus, when dams and tunnels are built alongside rampant unregulated road construction, incessant blasting and heavy machinery being deployed accelerates the process of slop weakening thereby preparing the perfect recipe for massive landslides.

Ravi Chopra, a member of many high powered committees analyzing large hydro projects in the state, termed present day dams being built in the state ‘obsolete’ and repeats what he has to numerous governments and other experts that is, to preserve 50% of a river in its natural state and build smaller dams which can be run-of-the-river type which means negligible or very little water storage. And what does the government(s) do?

A recent study of a Ministry of Environment & Forests report reveals that an expert appraisal committee (EAC) on river valley and hydroelectric projects (RVP), during a period stretching from April 2007 to December 2012, studied a total of 262 hydropower and irrigation projects and did not reject a single project in this period. Now, according to the Environmental Protection Act 1986 and (amended) 1991, Environmental Impact Assessment Reports are to be prepared by an independent group of experts for each project and each project will then be granted environmental clearance after due diligence. How in the world did all the above projects get clearance when the tell tale signs were present long before the major disaster struck?

In 1991, Jhamak village situated right above the tunnel dug for the Maneri Bhali I hydroelectric project on Bhagairathi, suffered more damagethan other villages which were closer to the epicenter of the quake. In 2007, many houses in Chai Gaon, situated close to the blasting sites of the Vishnprayag hydroelectric project, developed cracks and many people had to evacuate. There are similar landslide stories related to when Maneri Bhali II hydroelectric project became operational in 2008 and the under-construction Loharinag Pala hydroelectric project which was later stalled. Now, with all these examples in the same state, the central government still clears 262 projects in a clean sweep but here's the greatest irony. Even when the central government declared 135km of the Ganga as an eco-sensitive zone and banned all construction activity, the state government passed a resolution against it, state Chief Minister led a procession of MPs against the central government demanding a lift on the ban citing it was against the will and future livelihood of the people and eventually, the ban was blatantly ignored.

Herein, in the wake of this tragedy comes the case of India’s 125th rank in the Yale University’s Environment PerformanceIndex. When it comes to the water related scores and rank, under the both the categoris of Environmental health of Water and Ecosystem Vitality of Water Resources, we are not only ranked 104 and 122 respectively, but the metric that judges the improvement over time for all the variables, we are among the worst performers in almost all the metrics. There are critics, mostly belonging to the project developers, experts and power ministry and other power related regulatory bodies (lobbyists would be an apt term but for the illegality of the term in India) who cite lack of ‘conclusive evidence’ against land use in projects like dams, roads and construction. The storyline seems similar to BCCI’s obdurate refusal to the DRS but herein at stake lay survival of thousands of innocent lives on one side as against massive financial gains and cheap power to the people. This is the critical question: Are we, as a nation, willing to ignore long term disastrous (loss of human life and habitats) impacts that can result with increasing probability due to mindless destruction of fragile and delicate ecological systems like the Himalayas for the sake of ‘faster’ economic growth opportunities?

Destroyed Vishnupryag HEP (400MW), View from the upstream 26 June, 2013  Image Courtesy: http://matuganga.blogspot.in/2013/06/press-note-30-6-2013.html 

Herein, the case of Germany deserves mention. In the 1970s, Germany was an environmental blot on the globe with its huge per capita emissions of sulpher-dioxide and Hydro-flourocarbons (HFCs), its rivers like the Rhine were dirty metallic and toxic waste drains and it had some of the world’s biggest gas guzzling automobiles. Industry lobbyists and labour unions stood ground chanting the age-old job loss rhetoric. It took Chernobyl and a series of minor environmental disasters coupled with some far sighted leadership, a massive green and clean technology movement and the world’s first Green party to transform Germany into the world’s biggest clean technology producer, consumer and exporter.

A little research on the internet can reveal the per capita production and consumption of clean energy in Germany which is the highest in the world and its rank of 13 in the 2012 is only due to slower progress on gas guzzling automobiles. The metric that measures the improvement trend over time for any country in the Yale Index shows Germany as the leader having shown the greatest improvement. And, for cynics, Germany’s total hydropower capacity still remains at the same level as it was in 1990 while both wind and solar have crossed hydro capacity in that land by more than twice and 50% respectively.        

Coming back to Uttarakhand, when it comes to the issue of dams, the issue seems to be complicated by the fact that dams have been scientifically proven to avoid floods, increase power supply and reduce carbon emissions. Logic might suggest so given the fact that there are no emissions during the lifecycle of hydroelectricity production. However, we all forget the impact that deforestation, methane emissions from dam reservoirs. Deforestation, occurring due to clearing the slopes for major projects creates the perfect breeding ground for landslides, results in massive loss of local biodiversity and localized ability of plant life to absorb Greenhouse gas emissions and adds to methane generating decaying plant waste. While the overall green cover of the state has remained almost same in the last 20 years, the quality of afforestation on other land areas to compensate for the deforestation and diverted land use has never made up for the damage caused by localized landslide sites being created due to removal of trees and top soil and the disturbance of the ecological balance of the natural biodiversity existing in a local region.

Secondly, methane emissions from huge dam reservoirs are often the forgotten numbers in calculating the overall ecological and climate impact. A recent study by Ivan Lima and colleagues from Brazil’s National Institute of Space Research (INPE) estimated that the methane emission from India’s dams is at 27.86 % of the methane emission from all the large dams of the world, which is more than the share of any other country of the world with Brazil being the second. A 2007 study suggested that methane from dam reservoirs actually contributes 19% of greenhouse gas emissions of India while contributing 16% of its electricity and even lesser of its total electricity use.

And coming to the third number I mentioned in the beginning, a 94 rank in the world’s most corrupt countries is evident by the fact that the Disaster Management department of the state had never meet since its inception a few years back, a Home Ministry official clearly stated on condition of anonymity that the state government machinery completely failed to do anything as a response to the disaster and there is no credible evidence as to how so many projects have been cleared without any environment clearance reports being publicly available to be studied by independent and international experts.  At the same time, a little less famous among the famed CAG reports (highlighting the biggest scams in India’s history) that came a few years ago lambasted the ill-preparedness of the state for preventing any such major disaster and complete lack of basic infrastructure to deal with the aftermath. There is absolutely no doubt that Uttarakhand has become a major cash cow for the politician-business-bureaucrat nexus to exploit the natural wealth of the state and we, as informed citizens, are equally responsible.

So, while I continue to drown into the world of Himalyan ecology and trying to ascertain when and where will the environmental time bomb explode on our land, I still dream of that elusive utopia that the above ranks be happily traded with SRT's lowest scores in the last few series when he steps for the last time (my heart skips a beat even thinking of the possibility). 

(This is the first part of a series of articles to follow and the answer to 'What can we Do ...' asked in the early paragraphs of this piece and a lot more will be explored in the future parts)

(Thanks to Surbhit for his thought provoking views that made me work on this issue)

Monday, May 13, 2013

400 - Records Keep Tumbling


While there is no doubt that that the very universe can be described in the language of numbers, I’ve always had a love and hate relationship with them all my life. I got 19 out of 100 in one of my school term exams in mathematics in class 12 (not in boards surely) and well, I considered it one of the lows of my life. As usual, I was stuck in one of the vicious cycles of my life. Speaking of cycles and numbers, I should probably stop basking in the glory of my school report card and come to the point. I come across a lot of written and spoken stuff about cycles and numbers in the kind of stuff I read. And one of them that’s hogging the lime light lately is 400.

I can’t remember anything about 400 over which any love was won or lost in my life except that its the highest individual test score in cricket made by a man whom I would rate higher than Tendulkar anyday in my life (best part - he isn’t an Aussie). Of course, when I tried to stir my head in the few moments of sobriety I am lucky to get, the only thing that kept coming to my mind was the film 400. Two of my brothers, (both sane blokes considering their anti-Dhoni rant), have somehow developed an enigmatic affection for that piece of cultural graffiti I somehow find blasphemous of calling a motion picture (barring some scenes which considering the family audience of my blog, cannot explicitly describe here). So, where was I? Yeah, so while I was wondering why in the world did Butler chose just 400 Hollywood extras to fight an enemy comprising of all possible gothic characters ever conceived, my fading eyesight captured a poster on the net saying the film happens to be titled 300. I wonder if the original Spartans were 400 but 100 were mistakenly pushed into the well during the “This is Sparta!” frenzy (no pun intended). Anyways, pardon my mumbo jumbo (hangover hasn’t subsided I guess) for I am supposed to talk about why 400 has become important.

Well, its actually the 43rd self number in the list of base 10 numbers. Self numbers, also called Devlali numbers, are those integers, in a particular base (base means binary, decimal etc.) which cannot be obtained by any other integer added to the sum of that other integer’s digits (21 is not a self number as another integer 15 when added to the sum of its digits, 15+1+5 = 21). How many of knew by the way that self numbers were first described by the Indian mathematician D R Kaprekar in 1949 and he lived and taught in the town of Devlali in Maharashtra till the end of his life. Its all on Wikipedia so I should better stop copying and come to the point.

Hey all, I must humbly request you to kindly forgive my digressions (I just recalled my latest attempt to be on a high cost me 400). I know its a bad request. Speaking of bad requests, I occasionally encounter them when I try to open certain kind of websites which are best not mentioned. Anyways, how many of you know or remember that the HTTP Status 400: Bad Request code you must have seen on your computer screens. Who knows, considering the rape cases which crossed 400 last year in many major cities in India, tries for certain kind of online ‘education’ that ‘juveniles’ like me are in dire need of, may soon be permanently termed Bad Request in our country. I know I’ll rot in hell because I just realised its already daytime and I have already bored you all to death by writing over 600 words of unadulterated adultery about 400.

Actually, The Mauna Loa Observatory on the island state of Hawaii, USA recently recorded something that has not happened in all of human history. Actually, it hasn’t happened in the last 3 million years. Because for the first time in 3 million years, the concentration of carbon dioxide in the Earth’s atmosphere hit 400 parts per million on an average over an entire day just a few days ago. So, what’s the big deal? Well, referring to one of my previous posts titled A BurningApocalypse for Earth?, the earth is well on its way to flush out large parts of humanity within the next hundred years if our love affair with carbon emitting fossil fuels doesn't end soon. By the way, the last time our planet saw such CO2 concentrations, scientists estimate the oceans were just a ‘mere’ 35-65 feet higher. And what most scientists from some of the world’s best research labs and universities are saying is that it could happen again and the signs will become visible in the next few years.

Anyways, if the seas will rise, we (by we, I mean the middle income and upper classes as I doubt  my blog is read by people belonging to lower middle income or the lower income bracket) can always move away from the seas inland and the only people affected will be the poverty stricken living close to sea level. If more and more floods and droughts occur, we can always relax as we mostly live in cities which are rarely directly affected by floods (till now) and if we can afford colas, we can definitely afford packaged water whose rising costs in case of such climatic effects will not affect our household budgets much.

And of course, we don’t care that our food chains will be severely hampered and food prices may rise by more than 30% permanently above the normalised price rise in the next 20 years exacerbating hunger and malnourishment among the already 1 billion plus hungry on the planet. And of course, most of us probably don’t even know that in the Indian subcontinent and in sub Saharan Africa, diseases occurring due to poor water availability and pathetic water quality among the poor is among the top 3 killers. I’ll end my monologue hoping against hope that we can begin shifting to electric cars, energy efficient lighting, ACs and refrigerators and using public transport to the maximum extent possible.  


As I’m wide awake now, I hope to be granted clemency for yet another round of end-of-the-world prophecies to end this piece but I had to harp upon other aspects of 400 because that was the only way I saw to hold some of yours’ attention to read till the end. By the way, for a start, I have got a CNG kit installed in my car for Rs. 24000 as it emits nearly 40% less greenhouse gases compared to a gasoline or diesel car and costs Rs. 2 per km less than diesel and Rs. 3.5 per km less than petrol. Thus, for anyone wanting to drive his car for atleast 10000 km (which more than 99% people do), an electric car is best for city traffic and for long distance travel, CNG should be next in priority list.


(And this time, the inspiration to write something new came from my friend Sakshi)